L.E. Bruzzone, R.M. Molfino, and R.P. Razzoli (Italy)
robotics, manufacturing, laser, cutting.
For high-speed laser operations the use of parallel robots potentially offers many benefits, due to their structural stiffness and limited moving masses. This paper deals with a particular Delta, developed for high-speed laser cutting. Three RUU parallel chains allow only pure translations of the moving platform carrying the laser equipment, without any rotation: for this feature the machine is suitable for plane sheet metal cutting. The kinematic model, the workspace and singularity analyses, the functional design of the robot are treated. The proposed mechanical architecture seems to be efficient and industrially competitive for all the laser-cutting applications in which high speed, extreme accuracy and flexibility are required in a relatively small workspace.
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